>Of the commercial utilities, I think that Disk Warrior is by far the >best, but you can probably do without it completely if you are using >OS X. Until your hard drive crashes and burns. My PowerBook's hard drive recently crashed badly. I couldn't boot it beyond the Apple logo and sometimes not even to that. Disk Utility wouldn't recognize the drive when booting from the OS X Panther system disk. The only thing that would recognize the drive was Disk Warrior. The drive was so bad that even though Disk Warrior could read the drive and could create in memory a new disk directory, the drive would not accept the writing of the new directory. With a second external FireWire drive mounted, Disk Warrior did save my bacon by allowing me to copy files from the damaged internal hard disk to the external hard disk. That feature alone made Disk Warrior once again, worth its weight in gold. Do note that this type of file recovery can take many days of reading/writing as Disk Warrior is very persistent in attempting to copy what might otherwise would be unreadable data.